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# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import abc
import collections
import six
HealthcheckResult = collections.namedtuple(
'HealthcheckResult', ['available', 'reason'], verbose=True)
@six.add_metaclass(abc.ABCMeta)
class HealthcheckBaseExtension(object):
def __init__(self, conf):
self.conf = conf
@abc.abstractmethod
def healthcheck():
"""method called by the healthcheck middleware
return: HealthcheckResult object
"""
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